Gel

Gel is a substance between solid and liquid. It has the elasticity and shape of solid, but contains a large amount of liquid. The formation of gel is usually due to the formation of a three-dimensional network structure by macromolecules or polymers in the liquid, which wraps the liquid in it.
Gel is used in the food industry, cosmetics industry, pharmaceutical industry, and industrial field. Common gels include natural gels: such as agar, gelatin, sodium alginate, etc. Synthetic gels: such as polyacrylamide gel, polyvinyl alcohol gel, etc. Inorganic gels: such as silica gel, alumina gel, etc.